use crossbeam::channel::unbounded;
use std::thread;

fn main() {
    let (tx, rx) = unbounded();

use log::{info, warn, error};

fn main() {
    env_logger::init();

    info!("Application started");

fn divide(a: i32, b: i32) -> i32 {
    if b == 0 {
        panic!("division by zero");
    }
    a / b
}

use std::marker::PhantomData;

struct Token<'a> {
    _marker: PhantomData<&'a ()>,
}

use std::sync::{Arc, Mutex};
use std::thread;

fn main() {
    let data = Arc::new(Mutex::new(vec![1, 2, 3]));

use wasm_bindgen::prelude::*;

#[wasm_bindgen]
pub fn greet(name: &str) -> String {
    format!("Hello, {}!", name)
}

#![feature(asm)]

fn add_asm(a: u64, b: u64) -> u64 {
    let result: u64;
    unsafe {
        asm!(

#[cfg(target_os = "linux")]
fn platform_specific() {
    println!("Running on Linux");
}

#[cfg(target_os = "windows")]

mod utils {
    pub fn helper() {
        println!("Helper function");
    }

    fn private_fn() {}

use std::env;

fn main() {
    let port: u16 = env::var("PORT")
        .unwrap_or_else(|_| "8080".to_string())
        .parse()

use std::fs::File;
use std::io::{BufRead, BufReader, Result};

fn main() -> Result<()> {
    let file = File::open("input.txt")?;
    let reader = BufReader::new(file);

use std::fs;
use std::io::Result;

fn main() -> Result<()> {
    let contents = fs::read_to_string("input.txt")?;
    println!("File contents: {}", contents);